National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Philadelphia, Philadelphia International Airport (KPHL)

Lat: 39.87°NLon: 75.23°WElev: 7ft.

Light Rain Fog/Mist

64°F

18°C

Humidity 96%
Wind Speed NE 13 mph
Barometer 29.93 in (1013.3 mb)
Dewpoint 63°F (17°C)
Visibility 2.00 mi
Last update 11 Oct 4:54 pm EDT
Extended Forecast for

Marcus Hook PA

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm. Cloudy, with a high near 66. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 5am. Low around 60. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Showers

  • Columbus Day

    Columbus Day: A chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 74 °F

    Chance
    Showers then
    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm. Cloudy, with a high near 66. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms, mainly before 2am, then showers likely and possibly a thunderstorm after 5am. Low around 60. Northeast wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Columbus Day
A chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 74. North wind 5 to 10 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 57. Northwest wind around 5 mph becoming calm.
Tuesday
Mostly sunny, with a high near 77. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
A chance of showers after 2am. Partly cloudy, with a low around 55. Chance of precipitation is 40%.
Friday
Showers likely. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 50. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Marcus Hook PA
 39.83°N 75.41°W (Elev. 46 ft)
Last Update:
4:10 pm EDT Oct 11, 2026
Forecast Valid:
5pm EDT Oct 11, 2026-6pm EDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation